CN1812026A - Multilayer capacitor - Google Patents
Multilayer capacitor Download PDFInfo
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- CN1812026A CN1812026A CNA2006100032101A CN200610003210A CN1812026A CN 1812026 A CN1812026 A CN 1812026A CN A2006100032101 A CNA2006100032101 A CN A2006100032101A CN 200610003210 A CN200610003210 A CN 200610003210A CN 1812026 A CN1812026 A CN 1812026A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/012—Form of non-self-supporting electrodes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/228—Terminals
- H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
Abstract
A multilayer capacitor comprises a multilayer body and a plurality of terminal electrodes formed on the multilayer body. The plurality of terminal electrodes include first and second terminal electrodes. The multilayer body is constructed by alternately laminating a plurality of dielectric layers and first and second inner electrode layers. The first inner electrode layer includes a first lead electrode electrically connected to the first terminal electrode and a first capacitor electrode forming a capacitance component. The portion positioned between a pair of slits provided in the first capacitor electrode is continuous with the first lead electrode. The second inner electrode layer includes a second lead electrode electrically connected to the second terminal electrode and a second capacitor electrode forming a capacitance component. The portion positioned between a pair of slits provided in the second capacitor electrode is continuous with the second lead electrode.
Description
Technical field
The present invention relates to stacked capacitor.
Background technology
As the known a plurality of terminal electrodes that have the duplexer of alternatively stacked a plurality of dielectric layers and a plurality of interior electrode layers and on this duplexer, form of this cascade capacitor (for example, the spy opens the 2004-140211 communique).
In the power supply that is used for supplying with the central processing unit (CPU) that digital electronic device places, in continuous lower voltage on the other hand, load current constantly increases.Therefore, supply voltage is suppressed in the permissible value very difficulty with respect to the change jumpy of load current.For this reason, the cascade capacitor that is called as decoupling capacitor can be connected with power supply.Like this, when the load current transition changes, can supply an electric current to CPU, suppress the change of supply voltage from this cascade capacitor.
In recent years, along with the further high frequencyization of the operating frequency of CPU, under high speed, it is bigger that load current becomes.Therefore, in the cascade capacitor that in decoupling capacitor, uses, when increasing capacity, require to increase equivalent series resistance (ESR).
Yet, open in the described cascade capacitor of 2004-140211 communique the spy, do not study about equivalent series resistance.In addition, open in the described cascade capacitor of 2004-140211 communique the spy, in order to reduce equivalent series inductance (ESL), with extraction electrode that interior electrode layer comprised with root widen.Therefore, in this cascade capacitor, exist equivalent series resistance to reduce excessive worry.
Summary of the invention
The objective of the invention is to provide a kind of cascade capacitor that can easily carry out the control of equivalent series resistance.
Yet in general cascade capacitor, internal electrode is stacked by extraction electrode and corresponding terminal electrode connection.Therefore, when the number of interior electrode layer increased, the number of extraction electrode also increased, and equivalent series resistance reduces.In order to realize the big electric capacityization of cascade capacitor, when increasing the stacked number of dielectric layer and interior electrode layer, the number of extraction electrode also increases.Because the resistance components and the terminal electrode of extraction electrode are connected in parallel, therefore, along with the number of extraction electrode increases, the equivalent series resistance of cascade capacitor further reduces.Like this, the big electric capacityization of cascade capacitor and increase equivalent series resistance are opposite demands.
Present inventors etc. carry out deep research to satisfying the cascade capacitor that increases electric capacity and increase the requirement of equivalent series resistance, even it is identical to be conceived to the stacked number of dielectric layer and interior electrode layer, length by the lengthening extraction electrode also can increase the equivalent series resistance this point.But, because the simple length that increases extraction electrode can make the duplexer size increase.Therefore, present inventor etc. find a new fact, promptly by in forming the electrode part of capacitive component, the part that also plays the extraction electrode effect are set, and increase the part suitable with extraction electrode in fact, can suppress excessively reducing of equivalent series resistance.In addition, present inventors also find a new fact, promptly utilize the above-mentioned length that also plays the part of extraction electrode function, equivalent series resistance can be adjusted to desired value.
According to this result of study, a kind of cascade capacitor of the present invention, a plurality of terminal electrodes that it has the duplexer of a plurality of dielectric layers of interaction cascading and a plurality of interior electrode layers and forms on this duplexer, it is characterized in that a plurality of interior electrode layers comprise first interior electrode layer and second interior electrode layer of mutual configuration; A plurality of terminal electrodes comprise electric first and second terminal electrodes of going up mutually insulated; First interior electrode layer has first extraction electrode that is connected with the first terminal electrode and first electrode for capacitors that forms capacitive component; Second interior electrode layer has second extraction electrode that is connected with second terminal electrode and second electrode for capacitors that forms capacitive part; Be provided with a pair of slit (slit) portion of stretching out from the periphery edge corresponding with first extraction electrode on first electrode for capacitors, the part between this a pair of slot portion is continuous with first extraction electrode; Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with second extraction electrode on second electrode for capacitors, the part between this a pair of slot portion is continuous with second extraction electrode.
In addition, according to above-mentioned result of study, a kind of cascade capacitor of the present invention, a plurality of terminal electrodes that it has the duplexer of a plurality of dielectric layers of interaction cascading and a plurality of interior electrode layers and forms on this duplexer, it is characterized in that a plurality of interior electrode layers comprise a plurality of first interior electrode layers and a plurality of second interior electrode layer of mutual configuration; A plurality of terminal electrodes comprise electric a plurality of the first terminal electrodes and a plurality of second terminal electrode of going up mutually insulated; First interior electrode layer have with a plurality of the first terminal electrodes in any one first extraction electrode that is connected and form first electrode for capacitors of capacitive component; Second interior electrode layer have with a plurality of second terminal electrodes in any one second extraction electrode that is connected and form second electrode for capacitors of capacitive part; Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with first extraction electrode on first electrode for capacitors, the part between this a pair of slot portion is continuous with first extraction electrode; Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with second extraction electrode on second electrode for capacitors, the part between this a pair of slot portion is continuous with second extraction electrode.
In addition, according to above-mentioned result of study, a kind of cascade capacitor of the present invention, a plurality of terminal electrodes that it has the duplexer of a plurality of dielectric layers of interaction cascading and a plurality of interior electrode layers and forms on this duplexer, it is characterized in that a plurality of interior electrode layers comprise a plurality of first interior electrode layers and a plurality of second interior electrode layer of mutual configuration; A plurality of terminal electrodes comprise electric a plurality of the first terminal electrodes and a plurality of second terminal electrode of going up mutually insulated; First interior electrode layer has a plurality of first extraction electrodes that are connected with a plurality of the first terminal electrodes respectively and first electrode for capacitors that forms capacitive component; Second interior electrode layer has a plurality of second extraction electrodes that are connected with a plurality of second terminal electrodes respectively and second electrode for capacitors that forms capacitive part; On first electrode for capacitors, be provided with from the periphery edge corresponding with first extraction electrode stretch out many to slot portion, the part at this between each a pair of slot portion is continuous with the first corresponding extraction electrode; On second electrode for capacitors, be provided with from the periphery edge corresponding with second extraction electrode stretch out many to slot portion, the part at this between each a pair of slot portion is continuous with the second corresponding extraction electrode.
In cascade capacitor of the present invention, the part between a pair of slot portion of first and second electrode for capacitors works to form the electrode part of capacitive component, simultaneously, also plays extraction electrode.Therefore, in first and second interior electrode layers, the length of the part suitable with extraction electrode is elongated in fact.Therefore, can in these cascade capacitors, guarantee electric capacity, and can increase equivalent series resistance.In addition, the slot portion of stretching out from the periphery edge corresponding with first extraction electrode is being set on first electrode for capacitors and second electrode for capacitors, is being provided with from the slot portion of stretching out with the corresponding periphery edge of second extraction electrode, like this, in these cascade capacitors, can control equivalent series resistance respectively.Therefore, can easily in these cascade capacitors, carry out the control of equivalent series resistance.
In addition, a certain at least side's part preferably is serpentine shaped or crank shape in the part between a pair of slot portion in first and second electrode for capacitors.In this case, in a certain at least side of first and second interior electrode layers, the length of the part suitable with extraction electrode further increases.Therefore, can further increase the value of equivalent series resistance.
In addition, a certain at least side's extraction electrode preferably has peristome in first and second extraction electrodes.In this case, the area of a certain at least side's extraction electrode diminishes in first and second extraction electrodes.Therefore, can further increase equivalent series resistance.
In addition, a certain at least side's part preferably has peristome in the part between a pair of slot portion in first and second electrode for capacitors.In this case, among a certain at least side of first and second interior electrode layers, the area of the part suitable with extraction electrode diminishes.Therefore, can further increase equivalent series resistance.
In addition, it is narrower than the width of a side that is connected with first extraction electrode that the part between a pair of slot portion of first electrode for capacitors preferably is set to the width of the remnants of defeated troops' side that makes first electrode for capacitors.In this case, the resistance ratio of the part between a pair of slot portion of first electrode for capacitors is bigger, can further increase the value of equivalent series resistance.
In addition, it is narrower than the width of a side that is connected with second extraction electrode that the part between a pair of slot portion of second electrode for capacitors preferably is set to the width of the remnants of defeated troops' side that makes second electrode for capacitors.In this case, the resistance ratio of the part between a pair of slot portion of second electrode for capacitors is bigger, can further increase the value of equivalent series resistance.
In addition, by regulating the length of slot portion, equivalent series resistance is set at desired value.In this case, the adjustable in length of the part between a pair of slot portion obtains having the cascade capacitor of desirable equivalent series impedance easily.
Adopt the present invention, the cascade capacitor that can easily carry out the control of equivalent series resistance can be provided.
Can understand the present invention more fully by detailed description below in conjunction with accompanying drawing.These accompanying drawings for explanation, are not limitations of the present invention just.
From detailed description given below, can understand range of application of the present invention.Yet, should be appreciated that the detailed description of expression preferred implementation of the present invention and object lesson are in order to illustrate.One skilled in the art will appreciate that within the spirit and scope of the present invention, can make various changes and improvements this detailed explanation.
Description of drawings
Fig. 1 is the stereogram of the cascade capacitor of first execution mode;
Fig. 2 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of first execution mode;
Fig. 3 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of second execution mode;
Fig. 4 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of second execution mode;
Fig. 5 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of the 3rd execution mode;
Fig. 6 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 3rd execution mode;
Fig. 7 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 3rd execution mode;
Fig. 8 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 3rd execution mode;
Fig. 9 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of the 4th execution mode;
Figure 10 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of the 5th execution mode;
Figure 11 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of the 6th execution mode;
Figure 12 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 6th execution mode;
Figure 13 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of the 7th execution mode;
Figure 14 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 7th execution mode;
Figure 15 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 7th execution mode;
Figure 16 is the exploded perspective view of the duplexer that comprises in the distortion example of cascade capacitor of the 7th execution mode;
Figure 17 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of the 8th execution mode.
Embodiment
Below, with reference to accompanying drawing, describe preferred implementation of the present invention in detail.In explanation, components identical or element with identical function omit repeat specification with identical symbolic representation.In Fig. 2～Figure 17,, stamp hacures on the zone suitable with interior electrode layer in order to see easily.In addition, in Fig. 3～Figure 16, omitted the XYZ coordinate axle, the reference axis of usefulness is identical with XYZ coordinate axle shown in Figure 2 in the following description.
First execution mode
See figures.1.and.2, the structure of the cascade capacitor C1 of first execution mode is described.Fig. 1 is the stereogram of the cascade capacitor of first execution mode.Fig. 2 is the exploded perspective view of the duplexer that comprises in the cascade capacitor of first execution mode.
As shown in Figure 1, cascade capacitor C1 has duplexer 1 and first and second terminal electrode 11a～11d, the 12a～12d of formation on this duplexer 1.
First and second terminal electrode 11a～11d, 12a～12d are respectively 4, and electric mutually going up insulated.Two first termination electrode 11a and 11b among 4 the first terminal electrode 11a, 11b, 11c, the 11d are positioned on the side 1a of duplexer 1, and all the other two the first terminal electrode 11c are positioned on the side 1b of the duplexer 1 relative with side 1a with 11d.On the other hand, two second terminal electrode 12a and 12b among 4 second terminal electrode 12a, 12b, 12c, the 12d are positioned on the side 1a of duplexer 1, and all the other two second terminal electrode 12c and 12d are positioned on the side 1b of duplexer 1.In each side of duplexer 1 1a, 1b, alternatively dispose first and second terminal electrode 11a～11d, 12a～12d.That is: on the 1a of side, dispose the first terminal electrode 11a, the second terminal electrode 12a, the first terminal electrode 11b, the second terminal electrode 12b in order; On the 1b of side, dispose the first terminal electrode 11c, the second terminal electrode 12c, the first terminal electrode 11d, the second terminal electrode 12d in order.
As shown in Figure 2, duplexer 1 is made of a plurality of (being 9 layers in the present embodiment) dielectric layers 10 and a plurality of (respectively being 4 layers in the present embodiment) first and second internal electrodes 20,22,24,26,30,32,34,36 interaction cascadings.In the cascade capacitor C1 of reality, the border integration between the dielectric layer 10 is to the degree of not seeing.
First interior electrode layer 20～26 has first extraction electrode 40,42,44,46 and first electrode for capacitors 60,62,64,66.First extraction electrode 40～46 is connected with among the first terminal electrode 11a～11d any one respectively.First extraction electrode 40～46 stretches out from first electrode for capacitors, 60～66 rectangular shapeds respectively, and their any one in two side 1a, the 1b of the duplexer 1 that forms the first terminal electrode 11a～11d are drawn.Specifically, first extraction electrode 40 that first interior electrode layer 20 has is connected with the first terminal electrode 11a, and 1a draws to the side of duplexer 1.First extraction electrode 42 that first interior electrode layer 22 has is connected with the first terminal electrode 11b, and 1a draws in the side of duplexer 1.First extraction electrode 44 that first electrode layer 24 has is connected with the first terminal electrode 11c, draws on the 1b of the side of duplexer 1.First extraction electrode 46 that first interior electrode layer 26 has is connected with the first terminal electrode 11d, and 1b draws in the side of duplexer 1.
Second interior electrode layer 30～36 has second extraction electrode 50,52,54,56 and second electrode for capacitors 70,72,74,76.Second extraction electrode 50～56 is connected with among second terminal electrode 12a～12d any one respectively.Second extraction electrode 50～56 stretches out from second electrode for capacitors, 70～76 rectangular shapeds respectively, and their any one towards two sides of the duplexer 1 that forms second terminal electrode 12a～12d and among 1a, the 1b are drawn.Specifically, second extraction electrode 50 that second interior electrode layer 30 has is connected with the second terminal electrode 12a, and 1a draws to the side of duplexer 1.Second extraction electrode 52 that second interior electrode layer 32 has is connected with the second terminal electrode 12b, and 1a draws to the side of duplexer 1.Second extraction electrode 54 that second electrode layer 34 has is connected with the second terminal electrode 12c, draws on the 1b of the side of duplexer 1.Second extraction electrode 56 that second interior electrode layer 36 has is connected with the second terminal electrode 12d, and 1b draws to the side of duplexer 1.
First electrode for capacitors 60～66 that forms the capacitive component of capacitor forms leaving on the position that the side parallel with the Z-direction of duplexer 1 have predetermined distance respectively.First electrode for capacitors 60～66 comprises the first capacitor extraction electrode 80,82,84,86 and the first capacitor body electrode 100,102,104,106 respectively.
As shown in Figure 2, the first capacitor extraction electrode 80～86 forms and utilize a pair of slot portion 120,122,124,126 of making respectively on first electrode for capacitors 60～66, and is continuous with the first corresponding extraction electrode 40～46.Each slot portion 120～126 is at the two ends of the Y direction at the position that first extraction electrode 40～46 is connected with first electrode for capacitors 60～66, is the narrow rectangle cutting-in of width that length direction forms with stretching out with the X-direction.The first capacitor extraction electrode 80 forms and utilizes slot portion 120 and first extraction electrode 40 continuous.The first capacitor extraction electrode 82 forms by the slot portion 122 and first extraction electrode 42 continuous.The first capacitor extraction electrode 84 forms by the slot portion 124 and first extraction electrode 44 continuous.The first capacitor extraction electrode 86 forms by the slot portion 126 and first extraction electrode 46 continuous.In addition, as shown in Figure 2, each first capacitor body electrode 100～106 forms and utilizes a pair of slot portion 120～126 respectively, separates with each first extraction electrode 40～46.In the present embodiment, each first capacitor extraction electrode 80～86 is between a pair of slot portion 120～126.Each paired slot portion 120～126 is set to stretch out from the periphery edge corresponding with first extraction electrode 40～46 of first electrode for capacitors 60～66.The first capacitor body electrode 100～106 becomes the remnants of defeated troops of first electrode for capacitors 60～66 with respect to the first capacitor extraction electrode 80～86.
Second electrode for capacitors 70～76 that forms the capacitive component of capacitor forms leaving on the position that the side parallel with the Z-direction of duplexer 1 have predetermined distance respectively.Second electrode for capacitors 70～76 comprises the second capacitor extraction electrode 90,92,94,96 and the second capacitor body electrode 110,112,114,116 respectively.
As shown in Figure 2, the second capacitor extraction electrode 90～96 forms and utilize a pair of slot portion 130,132,134,136 of making respectively on second electrode for capacitors 70～76, and is continuous with the second corresponding extraction electrode 50～56.Each slot portion 130～136 is at the two ends of the Y direction at the position that second extraction electrode 50～56 is connected with second electrode for capacitors 70～76, is that length direction stretches out the narrow rectangle cutting-in of width that forms with the X-direction.The second capacitor extraction electrode 90 forms and utilizes slot portion 130 and second extraction electrode 50 continuous.The second capacitor extraction electrode 92 forms by slot portion 132, and is continuous with second extraction electrode 52.The second capacitor extraction electrode 94 forms by the slot portion 134 and second extraction electrode 54 continuous.The second capacitor extraction electrode 96 forms by the slot portion 136 and second extraction electrode 56 continuous.In addition, as shown in Figure 2, each second capacitor body electrode 110～116 forms respectively and utilizes a pair of slot portion 130～136 to separate with each second extraction electrode 50～56.In the present embodiment, each second capacitor extraction electrode 90～96 becomes between a pair of slot portion 130～136.Each paired slot portion 130～136 is stretched out and is provided with from the periphery edge corresponding with second extraction electrode 50～56 of second electrode for capacitors 70～76.The second capacitor body electrode 110～116 becomes the remnants of defeated troops of second electrode for capacitors 70～76 with respect to the second capacitor extraction electrode 90～96.
See that in Z-direction first electrode for capacitors 60～66 and second electrode for capacitors 70～76 overlap.
As shown in Figure 2, the first and second capacitor extraction electrodes 80～86,90～96 form respectively and utilize slot portion 120～126,130～136 and first and second extraction electrodes 40～46,50～56 continuous.Therefore, in interior electrode layer, the first and second capacitor extraction electrodes 80～86,90～96 can have the function as the extraction electrode of the electrode for capacitors that connects corresponding terminal electrode and formation capacitive component.Therefore, the part that works in fact as the extraction electrode of first and second interior electrode layers 20～26,30～36 is respectively the part that is formed by first and second extraction electrode 40～46,50～56 and first and second capacitor extraction electrode 80～86,90～96.Therefore, in first and second interior electrode layers 20～26,30～36, suitable with extraction electrode in fact part, slot portion 120～126,130～136 situations are more elongated with not adding, and the equivalent series resistance of cascade capacitor C1 increases.
In addition, as shown in Figure 2, the first capacitor extraction electrode 80～86 overlaps with second electrode for capacitors 70～76 in Z-direction, forms the capacitor composition.And for example shown in Figure 2, the second capacitor extraction electrode 90～96 overlaps with first electrode for capacitors 60～66 in Z-direction, forms the capacitor composition.Like this, the function that the first and second capacitor extraction electrodes 80～86,90～96 not only have as extraction electrode, and the function that forms the condenser capacitance composition is arranged.Therefore, in this cascade capacitor C1, can guarantee electric capacity, and can increase equivalent series resistance.
In addition, the first and second capacitor extraction electrodes 80～86,90～96 are formed by each slot portion 120～126,130～136 respectively, utilize each slot portion 120～126,130～136 can change its length in the length of X-direction.That is, utilize the length of the slot portion 120～126,130～136 of making on first and second electrode for capacitors 60～66,70～76, can change the length of the part that plays the extraction electrode effect in fact, the result can change the value of equivalent series resistance.Like this, in cascade capacitor C1,, can change the value of the equivalent series resistance of cascade capacitor C1, therefore, carry out the control of equivalent series resistance easily by changing the length of slot portion 120～126,130～136.
In addition, because by changing the length of slot portion 120～126,130～136, therefore can change the value of the equivalent series resistance of multilayer capacitor C1, can utilize the length of slot portion 120～126,130～136, the value of the equivalent series resistance of cascade capacitor C1 is set at desired value.Like this, can obtain having the cascade capacitor of the value of desirable equivalent series resistance.
(second execution mode)
With reference to Fig. 3, the structure of the cascade capacitor of second execution mode is described.The cascade capacitor of second execution mode, different with the cascade capacitor of first execution mode on this aspect of shape of capacitor extraction electrode.Fig. 3 is the exploded perspective view of the duplexer 1 that comprises in the cascade capacitor of second execution mode.
As shown in Figure 3, in duplexer 1, the first and second capacitor extraction electrodes 80～86,90～96 are serpentine shaped.In addition, first and second extraction electrodes 40～46,50～56 that are connected with this first and second capacitors extraction electrode 80～86,90～96 also are serpentine shaped.
As mentioned above, in the cascade capacitor of present embodiment, part suitable with extraction electrode in fact in first and second interior electrode layers 20～26,30～36 is elongated.Therefore, same with the cascade capacitor of first execution mode, electric capacity can be guaranteed, and equivalent series resistance can be increased.
Particularly, in the cascade capacitor of second execution mode, because the shape of the first and second capacitor extraction electrodes 80～86,90～96 makes snakelike shape, the length of the first and second capacitor extraction electrodes 80～86,90～96 of extraction electrode effect is increased.As a result, in first and second interior electrode layers 20～26,30～36, suitable with extraction electrode in fact part is elongated, can increase the value of equivalent series resistance.
In addition, same with the cascade capacitor of first execution mode in the cascade capacitor of present embodiment, by changing the length of slot portion 120～126,130～136 respectively, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily.Can also utilize the length of each slot portion 120～126,130～136, the value of the equivalent series resistance of cascade capacitor is set at desired value, can obtain having the cascade capacitor of the value of desirable equivalent series resistance.
First and second extraction electrodes 40～46,50～56 do not make serpentine shaped, and do in a rectangular shape passable yet.In addition, it is also passable that the extraction electrode 80～86,90～96 of first and second capacitors does not all make serpentine shaped, only with in the first and second capacitor extraction electrodes 80～86,90～96 any one to make serpentine shaped also passable.Perhaps, for example just the capacitor extraction electrode of the part in the first capacitor extraction electrode 80～86 to make serpentine shaped also passable.
In addition, as shown in Figure 4, first and second capacitor extraction electrode 80～86,90～96 and first and second extraction electrode 40～46,50～56 to be shaped as crank shape also passable.
(the 3rd execution mode)
The structure of the cascade capacitor of the 3rd execution mode is described with reference to Fig. 5.The cascade capacitor of the 3rd execution mode, capacitor extraction electrode or extraction electrode have this point of peristome, and be different with the cascade capacitor of first execution mode.Fig. 5 is the exploded perspective view of the duplexer 1 that comprises in the cascade capacitor of the 3rd execution mode.
As shown in Figure 5, in duplexer 1, first and second extraction electrode 40～46,50～56 and first and second capacitor extraction electrode 80～86,90～96 have circular peristome 140,142,144,146,150,152,154,156.Peristome 140～146 is on the continuous part of first extraction electrode 40～46 and the first capacitor extraction electrode 80～86, by in X-direction three circular open portions being formed side by side.Peristome 150～156 is on the continuous part of second extraction electrode 50～56 and the second capacitor extraction electrode 90～96, in X-direction three invisible peristomes is formed side by side.
As mentioned above, in the cascade capacitor of present embodiment, in first and second interior electrode layers 20～26,30～36, elongated with the part that extraction electrode is suitable in fact.Therefore, same with the cascade capacitor of first execution mode, electric capacity can be guaranteed and equivalent series resistance can be increased.
Particularly, in the cascade capacitor of the 3rd execution mode, because the first and second capacitor extraction electrodes 80～86,90～96 and first and second extraction electrodes 40～46,50～56 have peristome 140～146,150～156, therefore, the area of suitable with extraction electrode in fact part diminishes.As a result, can increase the value of equivalent series resistance.
In addition, same with the cascade capacitor of first execution mode in the cascade capacitor of present embodiment, by changing the length of slot portion 120～126,130～136 respectively, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily.In addition, utilize the length of each slot portion 120～126,130～136, the value of the equivalent series resistance of cascade capacitor can be set at desired value, can obtain having the cascade capacitor of desirable equivalent series impedance.
It is also passable that first and second extraction electrode 40～46,50～56 and first and second capacitor extraction electrode 80～86,90～96 all have peristome, and just a part has peristome also passable.For example, just there is peristome also passable as first and second extraction electrodes 40～46,50～56 of any one party in first and second extraction electrode 40～46,50～56 and first and second capacitor extraction electrode 80～86,90～96.Perhaps, for example be that the first capacitor extraction electrode 80～86 has peristome also passable.
In addition, peristome 140～146,150～156 is not to only limit to circle shown in Figure 5.As shown in Figure 6, peristome 140～146,150～156 is that a long ellipse is also passable in X-direction.Perhaps, as shown in Figure 7, opening 140～146,150～156 is that the peristome of three rectangular shapes is also passable side by side in X-direction.Perhaps, as shown in Figure 8, opening 140～146,150～156 be one also passable in X-direction for long rectangular shape.
(the 4th execution mode)
With reference to Fig. 9, the structure of the cascade capacitor of the 4th execution mode is described.The cascade capacitor of the 4th execution mode is different with the cascade capacitor of first execution mode on this aspect of shape of capacitor extraction electrode.Fig. 9 is the exploded perspective view of the duplexer 1 that comprises in the cascade capacitor of the 4th execution mode.
As shown in Figure 9, in duplexer 1, about with a plurality of dielectric layers 10 and a plurality of interior electrode layer 20～26,30～36 stacked directions are perpendicular, and with draw first and second extraction electrode 40～46, the side 1a of 50～56 duplexer 1, width on the parallel direction of 1b, the first and second capacitor extraction electrodes 80～86 with the position that is connected with extraction electrode, 90～96 width compares, with the first and second capacitor body electrodes 100～106, first and second capacitor extraction electrode 80～86 at 110～116 positions that connect, 90～96 width is narrow.That is, as shown in Figure 9, the width of the Y direction of the first capacitor extraction electrode 80～86 at the position that is connected with the first capacitor body electrode 100～106 is narrower with the width of the Y direction at the position that is connected with first extraction electrode 40～46.In other words, the first capacitor extraction electrode 80～86 be set to the width setup of the first capacitor body electrode, 100～106 sides must be narrower than the width of a side that is connected with first extraction electrode 40～46.The width of the Y direction at the position that is connected with the second capacitor body electrode 110～116 of the second capacitor extraction electrode 90～96 is than the narrow width of the Y direction at the position that is connected with second extraction electrode 50～56.In other words, the second capacitor extraction electrode 90～96 is set to the narrow width of the width of the second capacitor body electrode, 110～116 sides than a side that is connected with second extraction electrode 50～56.
As mentioned above, in the cascade capacitor of present embodiment, in first and second interior electrode layers 20～26,30～36, suitable with extraction electrode in fact part is elongated.Therefore, same with the cascade capacitor of first execution mode, electric capacity can be guaranteed, and equivalent series resistance can be increased.
Particularly, in the cascade capacitor of the 4th execution mode, the first and second capacitor extraction electrodes 80～86,90～96, the width of the Y direction at each comfortable position that is connected with the first and second capacitor body electrodes 100～106,110～116, narrower than the width of the Y direction at the position that is connected with first and second extraction electrode 40～46,50～56.
In addition, same with the cascade capacitor of first execution mode in the cascade capacitor of present embodiment, by changing the length of slot portion 120～126,130～136 respectively, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily.In addition,, the value of the equivalent series resistance of cascade capacitor desired value can be set at, the cascade capacitor of desirable equivalent series impedance can be obtained having by the length of each slot portion 120～126,130～136.
Also can be for not being the whole first and second capacitor extraction electrodes 80～86,90～96 the shapes of width for changing in Y direction.For example, just in the first and second capacitor extraction electrodes 80～86,90～96 either party, as mentioned above, be the shape that width changes, and the opposing party's capacitor extraction electrode is that certain shape is also passable at the width of Y direction in Y direction.
(the 5th execution mode)
With reference to Figure 10, the structure of the cascade capacitor of the 5th execution mode is described.The stacked capacitor of the 5th execution mode, the number of the first terminal electrode that it connects with one first interior electrode layer and the cascade capacitor of the second terminal electrode number this point that is connected with one second internal electrode and first execution mode are different.Figure 10 is the exploded perspective view of the duplexer 1 that comprises among the cascade capacitor C1 of the 5th execution mode.
As shown in figure 10, duplexer 1 is made of first and second internal electrodes 160,170 of stacked a plurality of (being 9 layers in the present embodiment) dielectric layer 10 and a plurality of (respectively being 4 layers in the present embodiment) alternatively.In the cascade capacitor of reality, the border between the dielectric layer 10 is made of one, and reaches the degree of not seeing.
First interior electrode layer 160 has first extraction electrode 180,182,184,186 and first electrode for capacitors 200.First extraction electrode 180～186 that first interior electrode layer 160 has is 4, and is identical with the number of the first terminal electrode 11a～11d.First extraction electrode 180～186 connects with corresponding the first terminal electrode 11a～11d respectively, from first electrode for capacitors, 200 rectangular stretching out, it is drawn to side 1a, the 1b of the duplexer 1 that has formed the first terminal electrode 11a～11d.Specifically, first extraction electrode 180 is connected with the first terminal electrode 11a, and 1a draws in the side of duplexer 1.First extraction electrode 182 is connected with the first terminal electrode 11b, and 1a draws in the side of duplexer 1.First extraction electrode 184 is connected with the first terminal electrode 11c, and 1b draws in the side of duplexer 1.First extraction electrode 186 is connected with the first terminal electrode 11d, and 1b draws in the side of duplexer 1.
Second interior electrode layer 170 has second extraction electrode 190,192,194,196 and second electrode for capacitors 210.Second extraction electrode 190～196 that second interior electrode layer 170 has is 4, and is identical with the number of second terminal electrode 12a～12d.Second extraction electrode 190～196 connects with corresponding second terminal electrode 12a～12d respectively, from second electrode for capacitors, 210 rectangular stretching out, it is drawn to side 1a, the 1b of the duplexer 1 that has formed second terminal electrode 12a～12d.Specifically, second extraction electrode 190 is connected with the second terminal electrode 12a, and 1a draws in the side of duplexer 1.Second extraction electrode 192 is connected with the second terminal electrode 12b, and 1a draws in the side of duplexer 1.Second extraction electrode 194 is connected with the second terminal electrode 12c, and 1b draws in the side of duplexer 1.Second extraction electrode 196 is connected with the second terminal electrode 12d, and 1b draws in the side of duplexer 1.
First extraction electrode, 180,182, the second extraction electrodes 190,192 are offset on the Y of Figure 10 direction.That is: by the order of first extraction electrode 180, second extraction electrode 190, first extraction electrode 182, second extraction electrode 192 ,+Y direction skew ground fetch bit.First extraction electrode, 184,186, the second extraction electrodes 194,196 are offset in the Y of Figure 10 direction.That is, by the order of first extraction electrode 184, second extraction electrode 194, first extraction electrode 186, second extraction electrode 196 in+Y direction skew.
First electrode for capacitors 200 that forms the capacitive component of capacitor forms on the position that has predetermined distance from the side parallel with the Z-direction of duplexer 1 respectively.First electrode for capacitors 200 comprises the first capacitor extraction electrode 220,222,224,226 and the first capacitor body electrode 240.
The number of the first capacitor extraction electrode 220～226 is total identical with first extraction electrode 180～186, promptly 4.As shown in figure 10, the first capacitor extraction electrode 220～226 forms respectively by 4 slot portion of making on first electrode for capacitors 200 260,262,264,266, and is continuous with the first corresponding extraction electrode 180～186.4 slot portion are at the two ends of the Y direction at the position that first extraction electrode 180～186 is connected with first electrode for capacitors 200 to 260～266, stretch out as length direction and the narrow rectangle cutting-in of width that forms with X-direction.The first capacitor extraction electrode 220 forms by the slot portion 260 and first extraction electrode 180 continuous.The first capacitor extraction electrode 224 forms and utilizes slot portion 262 and first extraction electrode 182 continuous.The first capacitor extraction electrode 224 forms and utilizes slot portion 264 and first extraction electrode 184 continuous.The first capacitor extraction electrode 226 forms and utilizes slot portion 266 and first extraction electrode 186 continuous.In addition, as shown in figure 10, the first capacitor body electrode 240 forms and utilizes 4 slot portion that 260～266 and first extraction electrode 180～186 is separated.
First electrode for capacitors 200 that forms the condenser capacitance composition forms on the position that has predetermined distance from the side parallel with the Z-direction of duplexer 1 respectively.First electrode for capacitors 200 comprises the first capacitor extraction electrode 220～226 and the first capacitor body electrode 240.
The number of the second capacitor extraction electrode 230～236 is total identical with second extraction electrode 190～196, promptly 4.As shown in figure 10, the second capacitor extraction electrode 230～236 is respectively to form with the continuous mode of corresponding second extraction electrode 190～196 270,272,274,276 by 4 slot portion of making on second electrode for capacitors 210.4 slot portion are at the two ends of the Y direction at the position that second extraction electrode 190～196 is connected with second electrode for capacitors 210 to 270～276, stretch out as length direction and the narrow rectangle cutting-in of width that forms with X-direction.The second capacitor extraction electrode 230 is to form by the continuous mode of slot portion 270 and second extraction electrode 190.The second capacitor extraction electrode 232 forms to utilize the continuous mode of the slot portion 272 and second extraction electrode 192.The second capacitor extraction electrode 234 forms to utilize the continuous mode of the slot portion 274 and second extraction electrode 194.The second capacitor extraction electrode 236 forms to utilize the continuous mode of the slot portion 276 and second extraction electrode 196.In addition, as shown in figure 10, the second capacitor body electrode 250 utilizes 4 slot portion that 270～276 and second extraction electrode 190～196 is separated.
When Z-direction is seen, first electrode for capacitors 200 and second electrode for capacitors 210 overlap.
As shown in figure 10, the first and second capacitor extraction electrodes 220～226,230～236 form with the continuous mode of first and second extraction electrodes 180～186,190～196 respectively to utilize slot portion 260～266,270～276, can play extraction electrode.Therefore, in first and second interior electrode layers 160,170, the part that is equivalent to extraction electrode in fact is elongated.Like this, in the cascade capacitor C1 of the 5th execution mode, can guarantee electric capacity, and can increase equivalent series resistance.
In addition, the first and second capacitor extraction electrodes 220～226,230～236 are formed by slot portion 260～266,270～276, utilize the length in the slot portion 260～266,270～276 of X-direction, can change its length.Therefore, in the cascade capacitor C1 of the 5th execution mode,, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily by changing the length of slot portion 260～266,270～276.
And then, by changing the length of slot portion 260～266,270～276, can change the value of equivalent series resistance of the cascade capacitor C1 of the 5th execution mode, can utilize the length of slot portion 260～266,270～276, the value of the equivalent series resistance of the cascade capacitor C1 of the 5th execution mode is set at desired value.Like this, can obtain having the cascade capacitor of the value of desirable equivalent series resistance.
(the 6th execution mode)
With reference to Figure 11, the structure of the cascade capacitor of the 6th execution mode is described.The cascade capacitor of the 6th execution mode, on this aspect of shape of capacitor extraction electrode, different with the cascade capacitor C1 of the 5th execution mode.Figure 11 is the exploded perspective view of the duplexer 1 that comprised in the cascade capacitor of the 6th execution mode.
As shown in figure 11, in duplexer 1, the first and second capacitor extraction electrodes 220～226,230～236 are serpentine shaped.In addition, also be serpentine shaped with continuous first and second extraction electrodes 180～186,190～196 of this first and second capacitors extraction electrode 220～226,230～236.
As mentioned above, in the cascade capacitor of present embodiment, part suitable with extraction electrode in fact in first and second interior electrode layers 160,170 is elongated.Therefore, same with the cascade capacitor of the 5th execution mode, electric capacity can be guaranteed, and equivalent series resistance can be increased.
Particularly, in the cascade capacitor of the 6th execution mode, because the shape of the first and second capacitor extraction electrodes 220～226,230～236 makes snakelike shape, the length of the first and second capacitor extraction electrodes 220～226,230～236 of extraction electrode effect is increased.As a result, in first and second interior electrode layers 160,170, suitable with extraction electrode in fact part is elongated, can increase the value of equivalent series resistance.
In addition, in the cascade capacitor of present embodiment, same with the cascade capacitor of the 5th execution mode, by changing 4 slot portion to 260～266,270～276 length, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily.In addition, utilize 4 slot portion, the value of the equivalent series resistance of cascade capacitor can be set at desired value, can obtain having the cascade capacitor of the value of desirable equivalent series resistance 260～266,270～276 separately length.
First and second extraction electrodes 180～186,190～196 do not make serpentine shaped and do in a rectangular shape also passable.In addition, it is also passable the extraction electrode 220～226,230～236 of first and second capacitors all not to be made serpentine shaped, only with in the first and second capacitor extraction electrodes 220～226,230～236 any one to make serpentine shaped also passable.Perhaps, for example just the capacitor extraction electrode of the part in the first capacitor extraction electrode 220～226 to make serpentine shaped also passable.
In addition, as shown in figure 12, the first and second capacitor extraction electrodes 220～226,230～236 and first and second extraction electrode 180～186,190～196 to be shaped as crank shape also passable.
(the 7th execution mode)
With reference to Figure 13, the structure of the cascade capacitor of the 7th execution mode is described.The capacitor extraction electrode of the 7th execution mode or extraction electrode have this point of peristome, and be different with the cascade capacitor C1 of the 5th execution mode.Figure 13 is the exploded perspective view of the duplexer 1 that comprises in the cascade capacitor of the 7th execution mode.
As shown in figure 13, in duplexer 1, first and second extraction electrodes 180～186,190～196 and first and second capacitor extraction electrode 220～226,230～236 have circular peristome 280,282,284,286,290,292,294,296 respectively.Peristome 280～286 is on the continuous part of first extraction electrode 180～186 and the first capacitor extraction electrode 220～226, by in X-direction three circular open portions being formed side by side.Peristome 290～296 is on the continuous part of second extraction electrode 190～196 and the second capacitor extraction electrode 230～236, in X-direction three circular open portions is formed side by side.
As mentioned above, in the cascade capacitor of present embodiment, in first and second interior electrode layers 160,170, elongated with the part that extraction electrode is suitable in fact.Therefore, same with the cascade capacitor of the 5th execution mode, electric capacity can be guaranteed and equivalent series resistance can be increased.
Particularly, in the cascade capacitor of the 7th execution mode, because the one the second capacitor extraction electrodes 220～226,230～236 and first and second extraction electrodes 180～186,190～196 have peristome, therefore, the area of suitable with extraction electrode in fact part diminishes.As a result, can increase the value of equivalent series resistance.
In addition, in the cascade capacitor of present embodiment, same with the cascade capacitor of the 5th execution mode, by changing 4 slot portion to 260～266,270～276 separately length, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily.And then, utilize 4 slot portion to 260～266,270～276 separately length, the value of the equivalent series resistance of cascade capacitor can be set at desired value, can obtain having the cascade capacitor of the value of desirable equivalent series resistance.
It is also passable that first and second extraction electrodes 180～186,190～196 and first and second capacitor extraction electrode 220～226,230～236 all have peristome, and just a part has peristome also passable.For example, just there is peristome also passable as either party first and second extraction electrodes 180～186,190～196 in first and second extraction electrodes 180～186,190～196 and first and second capacitor extraction electrode 220～226,230～236.Perhaps, for example be that the first capacitor extraction electrode 180～186 has peristome also passable.
In addition, peristome 280～286,290～296 is not to only limit to circle shown in Figure 13.As shown in figure 14, peristome 280～286,290～296 is that a long ellipse is also passable in X-direction.Perhaps, as shown in figure 15, peristome 280～286,290～296 is that the peristome of three rectangles is also passable side by side in X-direction.Perhaps, as shown in figure 16, peristome 280～286,290～296 be one also passable in X-direction for long rectangular shape.
(the 8th execution mode)
With reference to Figure 17, the structure of the cascade capacitor of the 8th execution mode is described.This point of the shape of the capacitor extraction electrode of the cascade capacitor of the 8th execution mode, different with the cascade capacitor C1 of the 5th execution mode.Figure 17 is the exploded perspective view of the duplexer 1 that comprises of the cascade capacitor of the 8th execution mode.
As shown in figure 17, in duplexer 1, about the width on the stacked direction of a plurality of dielectric layers 10 and a plurality of interior electrode layer 160, the 170 vertical and parallel direction with the face of the duplexer 1 of having drawn the one the second extraction electrodes 180～186,190～196, with the width of the first and second capacitor extraction electrodes 220～226,230～236 at the position that is connected with extraction electrode relatively, the width of the one the second capacitor extraction electrodes 220～226,230～236 at the position that is connected with the first and second capacitor body electrodes 240,250 is narrow.That is, as shown in figure 17, the width of the Y direction at the position that is connected with the first capacitor body electrode 240 of the first capacitor extraction electrode 220～226, relatively narrower with the width of the Y direction at the position that is connected with first extraction electrode 220～226.In other words, it is narrower than the width that is connected with first extraction electrode 180～186 that the first capacitor extraction electrode 220～226 is set to the width of the first capacitor body electrode 240.The width of the Y direction at the position that is connected with the second capacitor body electrode 250 of the second capacitor extraction electrode 230～236 is than the narrow width of the Y direction at the position that is connected with second extraction electrode 190～196.In other words, the width of the second capacitor body electrode, 250 sides of the second capacitor extraction electrode 230～236 is than the narrow width of a side that is connected with second extraction electrode 190～196.
As mentioned above, in the cascade capacitor of present embodiment, in first and second interior electrode layers 160,170, suitable with extraction electrode in fact part is elongated.Therefore, same with the cascade capacitor of the 5th execution mode, electric capacity can be guaranteed, and equivalent series resistance can be increased.
Particularly, in the cascade capacitor of the 8th execution mode, the width of the Y direction at the position that the first and second capacitor extraction electrodes 220～226,230～236 are connected with the first and second capacitor body electrodes 240,250 separately, narrower than the width of the Y direction at the position that is connected with first and second extraction electrode 180～186,190～196.
In addition, in the cascade capacitor of present embodiment, same with the cascade capacitor of the 5th execution mode, by changing 4 slot portion respectively to 260～266,270～276 length, can change the value of equivalent series resistance, carry out the control of equivalent series resistance easily.In addition, utilize 4 control slot portion, the value of the equivalent series resistance of cascade capacitor can be set at desired value, can obtain having the cascade capacitor of the value of desirable equivalent series resistance 260～266,270～276 separately length.
In addition, also can be not resemble like this in whole first and second capacitor extraction electrodes 220～226,230～236 shape that the width in Y direction changes.For example, also can in the first and second capacitor extraction electrodes 220～226,230～236 only either party, as mentioned above in the shape of Y direction width for changing, and the opposing party's capacitor extraction electrode is certain shape at the width of Y direction.
More than describe the preferred embodiment for the present invention in detail, but this bright be not to only limit to above-mentioned execution mode.For example, the stacked number of the stacked number of dielectric layer 10 and first and second internal electrode 20～26,30～36,160,170 is not to only limit to the described number of above-mentioned execution mode.In addition, the species number of first and second interior electrode layers of first～the 4th execution mode also is not limited to 4, also can for 1.
From above-mentioned the present invention, the present invention can have multiple shifting gears as can be seen.These change does not think to depart from the spirit and scope of the present invention.Those skilled in the art will appreciate that all these change all in the scope of following claims.
Claims (9)
1, a kind of cascade capacitor, a plurality of terminal electrodes that it has the duplexer of a plurality of dielectric layers of interaction cascading and a plurality of interior electrode layers and forms on this duplexer is characterized in that,
Described a plurality of interior electrode layer comprises first interior electrode layer and second interior electrode layer of mutual configuration;
Described a plurality of terminal electrode comprises electric first and second terminal electrodes of going up mutually insulated;
Described first interior electrode layer has first extraction electrode that is connected with described the first terminal electrode and first electrode for capacitors that forms capacitive component;
Described second interior electrode layer has second extraction electrode that is connected with described second terminal electrode and second electrode for capacitors that forms capacitive part;
Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with described first extraction electrode on described first electrode for capacitors, the part between this a pair of slot portion is continuous with described first extraction electrode;
Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with described second extraction electrode on described second electrode for capacitors, the part between this a pair of slot portion is continuous with described second extraction electrode.
2, a kind of cascade capacitor, a plurality of terminal electrodes that it has the duplexer of a plurality of dielectric layers of interaction cascading and a plurality of interior electrode layers and forms on this duplexer is characterized in that,
Described a plurality of interior electrode layer comprises a plurality of first interior electrode layers and a plurality of second interior electrode layer of mutual configuration;
Described a plurality of terminal electrode comprises electric a plurality of the first terminal electrodes and a plurality of second terminal electrode of going up mutually insulated;
Described first interior electrode layer have with described a plurality of the first terminal electrodes in any one first extraction electrode that is connected and form first electrode for capacitors of capacitive component;
Described second interior electrode layer have with described a plurality of second terminal electrodes in any one second extraction electrode that is connected and form second electrode for capacitors of capacitive part;
Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with described first extraction electrode on described first electrode for capacitors, the part between this a pair of slot portion is continuous with described first extraction electrode;
Be provided with a pair of slot portion of stretching out from the periphery edge corresponding with described second extraction electrode on described second electrode for capacitors, the part between this a pair of slot portion is continuous with described second extraction electrode.
3, a kind of cascade capacitor, a plurality of terminal electrodes that it has the duplexer of a plurality of dielectric layers of interaction cascading and a plurality of interior electrode layers and forms on this duplexer is characterized in that,
Described a plurality of interior electrode layer comprises a plurality of first interior electrode layers and a plurality of second interior electrode layer of mutual configuration;
Described a plurality of terminal electrode comprises electric a plurality of the first terminal electrodes and a plurality of second terminal electrode of going up mutually insulated;
Described first interior electrode layer has a plurality of first extraction electrodes that are connected with described a plurality of the first terminal electrodes respectively and first electrode for capacitors that forms capacitive component;
Described second interior electrode layer has a plurality of second extraction electrodes that are connected with described a plurality of second terminal electrodes respectively and second electrode for capacitors that forms capacitive part;
On described first electrode for capacitors, be provided with from the periphery edge corresponding with described first extraction electrode stretch out many to slot portion, the part at this between each a pair of slot portion is continuous with corresponding described first extraction electrode;
On described second electrode for capacitors, be provided with from the periphery edge corresponding with described second extraction electrode stretch out many to slot portion, the part at this between each a pair of slot portion is continuous with corresponding described second extraction electrode.
As each described multilayer capacitor in the claim 1～3, it is characterized in that 4, a certain at least side's part is serpentine shaped or crank shape in the described part between the described a pair of slot portion of described first and second electrode for capacitors.
As each described multilayer capacitor in the claim 1～4, it is characterized in that 5, a certain at least side's extraction electrode has peristome in described first and second extraction electrodes.
As each described multilayer capacitor in the claim 1～5, it is characterized in that 6, a certain at least side's part has peristome in the described part between the described a pair of slot portion of described first and second electrode for capacitors.
7, as each described multilayer capacitor in the claim 1～6, it is characterized in that it is narrower than the width of a side that is connected with described first extraction electrode that the described part between the described a pair of slot portion of described first electrode for capacitors is set to the width of the remnants of defeated troops' side that makes described first electrode for capacitors.
8, as each described multilayer capacitor in the claim 1～7, it is characterized in that it is narrower than the width of a side that is connected with described second extraction electrode that the described part between the described a pair of slot portion of described second electrode for capacitors is set to the width of the remnants of defeated troops' side that makes described second electrode for capacitors.
9, as each described multilayer capacitor in the claim 1～8, it is characterized in that,, equivalent series resistance is set at desired value by regulating the length of described slot portion.
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| US7697262B2 (en) | 2005-10-31 | 2010-04-13 | Avx Corporation | Multilayer ceramic capacitor with internal current cancellation and bottom terminals |
| US7414857B2 (en) * | 2005-10-31 | 2008-08-19 | Avx Corporation | Multilayer ceramic capacitor with internal current cancellation and bottom terminals |
| US20080165468A1 (en) * | 2007-01-05 | 2008-07-10 | Avx Corporation | Very low profile multilayer components |
| US8238116B2 (en) | 2007-04-13 | 2012-08-07 | Avx Corporation | Land grid feedthrough low ESL technology |
| US8120891B2 (en) * | 2007-12-17 | 2012-02-21 | Murata Manufacturing Co., Ltd. | Multilayer capacitor having low equivalent series inductance and controlled equivalent series resistance |
| JP4475338B2 (en) * | 2008-02-14 | 2010-06-09 | Ｔｄｋ株式会社 | Multilayer capacitor |
| KR100956237B1 (en) | 2008-05-08 | 2010-05-04 | 삼성전기주식회사 | Multilayer Chip Capacitor |
| US8446705B2 (en) * | 2008-08-18 | 2013-05-21 | Avx Corporation | Ultra broadband capacitor |
| JP4600561B2 (en) * | 2008-09-30 | 2010-12-15 | Ｔｄｋ株式会社 | Multilayer capacitor |
| US20100188799A1 (en) * | 2009-01-28 | 2010-07-29 | Avx Corporation | Controlled esr low inductance capacitor |
| US9564275B2 (en) * | 2012-03-09 | 2017-02-07 | The Paper Battery Co. | Supercapacitor structures |
| WO2014145451A1 (en) | 2013-03-15 | 2014-09-18 | The Paper Battery Company, Inc. | Energy storage structures and fabrication methods thereof |
| US9583277B2 (en) | 2013-09-30 | 2017-02-28 | The Paper Battery Company, Inc. | Ultra-capacitor structures and electronic systems with ultra-capacitor structures |
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| JPS63305506A (en) * | 1987-06-06 | 1988-12-13 | Murata Mfg Co Ltd | Layered type capacitor |
| US6292350B1 (en) * | 1997-11-10 | 2001-09-18 | Murata Manufacturing, Co., Ltd | Multilayer capacitor |
| JP3336954B2 (en) * | 1998-05-21 | 2002-10-21 | 株式会社村田製作所 | Multilayer capacitors |
| JP2001052952A (en) * | 1999-08-10 | 2001-02-23 | Tdk Corp | Layered ceramic capacitor and its manufacture |
| JP3923723B2 (en) * | 2000-11-22 | 2007-06-06 | Ｔｄｋ株式会社 | Multilayer electronic components |
| JP3788329B2 (en) * | 2001-11-29 | 2006-06-21 | 株式会社村田製作所 | Capacitor array |
| JP2004140211A (en) | 2002-10-18 | 2004-05-13 | Murata Mfg Co Ltd | Multilayer capacitor |
| TWI229878B (en) * | 2003-03-12 | 2005-03-21 | Tdk Corp | Multilayer capacitor |
| JP3897745B2 (en) * | 2003-08-29 | 2007-03-28 | Ｔｄｋ株式会社 | Multilayer capacitor and multilayer capacitor mounting structure |
| KR100568310B1 (en) * | 2004-09-08 | 2006-04-05 | 삼성전기주식회사 | Multilayered chip capacitor |
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| US11605689B2 (en) | 2019-10-30 | 2023-03-14 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Array substrate and display device |
| CN113133324B (en) * | 2019-10-30 | 2023-04-11 | 京东方科技集团股份有限公司 | Array substrate and display device |
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| KR20060087465A (en) | 2006-08-02 |
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| TWI396213B (en) | 2013-05-11 |
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